Recent content by SEGFAULT1119

@Oroduin, You are correct. q is independent of ##\dot s##. I mistyped the question. And thank you for your answer.

Hello, I'm trying to follow Goldstein textbook to show that the Lagrangian is invariant under coordinate transformation. I got confused by the step below So ## L = L(q_{i}(s_{j},\dot s_{j},t),\dot q_{i}(s_{j},\dot s_{j},t),t)## The book shows that ##\dot q_{i} = \frac {\partial...

@jrmichler @wirenut Thank you for responding. The people who put the machine together modified the knob, so the knob has two relay boxes of the same type (in the previous links). Before I posted the thread, I had tried to test the contacts using an ohmmeter as jrmichler suggested but I couldn't...

Hello, I was wondering if I could get some help understanding the wiring of a knob switch (Link 1 and 2). It's on an old machine that we got and I can't find any schematic for switch. The purpose of the switch on the machine is to raise or lower a steel arm. There are actually two boxes...